@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --surface: #ffffff;
  --ink: #09090b;
  --soft: #3f3f46;
  --muted: #77777f;
  --line: #e4e4e0;
  --green: #47a568;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header,
.site-footer {
  border-color: rgba(9, 9, 11, 0.08);
  border-style: solid;
  width: 100%;
}

.site-header {
  border-width: 0 0 1px;
}

.site-footer {
  border-width: 1px 0 0;
}

.nav,
.footer-inner,
.section {
  margin: 0 auto;
  max-width: 1160px;
  padding-left: 22px;
  padding-right: 22px;
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding-bottom: 16px;
  padding-top: 16px;
}

.brand {
  align-items: center;
  display: flex;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
}

.brand-icon {
  border-radius: 12px;
  display: block;
  height: 38px;
  object-fit: cover;
  width: 38px;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--soft);
  font-size: 14px;
  font-weight: 800;
}

.app-store {
  display: inline-flex;
  line-height: 0;
}

.app-store img {
  height: auto;
  width: 178px;
}

.nav .app-store img {
  width: 132px;
}

.hero {
  align-items: center;
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  min-height: 690px;
  padding-bottom: 54px;
  padding-top: 58px;
}

.hero-copy {
  display: grid;
  gap: 26px;
  min-width: 0;
}

h1 {
  font-size: clamp(46px, 6vw, 70px);
  letter-spacing: 0;
  line-height: 0.98;
  margin: 0;
  max-width: 760px;
}

.hero-copy > p {
  color: var(--soft);
  font-size: 21px;
  line-height: 1.52;
  margin: 0;
  max-width: 650px;
}

.hero-actions,
.check-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.text-link {
  border-bottom: 1px solid var(--ink);
  font-size: 15px;
  font-weight: 800;
  padding: 7px 0;
}

.primary-link {
  align-items: center;
  background: var(--ink);
  border-radius: 8px;
  color: white;
  display: inline-flex;
  font-size: 15px;
  font-weight: 800;
  justify-content: center;
  padding: 14px 18px;
}

.check {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--soft);
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  gap: 8px;
  padding: 9px 12px;
}

.check::before {
  color: var(--green);
  content: "✓";
  font-weight: 800;
}

.hero-device {
  align-items: center;
  display: flex;
  justify-content: center;
  margin: 0;
  min-width: 0;
  position: relative;
}

.hero-device::before {
  display: none;
}

.hero-device img {
  display: block;
  filter: drop-shadow(0 28px 54px rgba(9, 9, 11, 0.08));
  height: auto;
  max-width: 100%;
  position: relative;
  width: min(410px, 100%);
}

.phone {
  background: #101114;
  border: 10px solid #25272d;
  border-radius: 46px;
  box-shadow: 0 26px 70px rgba(9, 9, 11, 0.22);
  display: grid;
  gap: 14px;
  padding: 18px;
}

.phone-top {
  align-items: center;
  display: flex;
  height: 26px;
  justify-content: center;
}

.island {
  background: #000;
  border-radius: 999px;
  height: 22px;
  width: 96px;
}

.result-card,
.cue-list,
.step,
.trust-box {
  background: var(--surface);
}

.result-card {
  border-radius: 24px;
  display: grid;
  gap: 12px;
  padding: 18px;
}

.label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.score-row {
  align-items: center;
  display: flex;
  gap: 16px;
}

.score {
  font-size: 54px;
  font-weight: 800;
  line-height: 1;
}

.score-title {
  font-size: 17px;
  font-weight: 800;
}

.score-body,
.cue,
.step p,
.trust-box p {
  color: var(--soft);
  line-height: 1.5;
}

.video-panel {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(9, 9, 11, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(9, 9, 11, 0.045) 1px, transparent 1px),
    #e7e8e4;
  background-size: 28px 28px;
  border-radius: 24px;
  display: flex;
  height: 230px;
  justify-content: center;
  overflow: hidden;
}

.barbell-scene {
  height: 150px;
  position: relative;
  width: 210px;
}

.bar,
.body,
.arm-a,
.arm-b,
.leg-a,
.leg-b {
  background: var(--ink);
  border-radius: 999px;
  position: absolute;
}

.head {
  background: var(--ink);
  border-radius: 999px;
  height: 24px;
  left: 90px;
  position: absolute;
  top: 18px;
  width: 24px;
}

.body {
  border-radius: 10px;
  height: 64px;
  left: 82px;
  top: 43px;
  transform: rotate(-14deg);
  width: 38px;
}

.arm-a {
  height: 10px;
  left: 48px;
  top: 82px;
  transform: rotate(18deg);
  width: 62px;
}

.arm-b {
  height: 10px;
  left: 104px;
  top: 82px;
  transform: rotate(-18deg);
  width: 62px;
}

.leg-a {
  height: 12px;
  left: 56px;
  top: 104px;
  transform: rotate(-30deg);
  width: 62px;
}

.leg-b {
  height: 12px;
  left: 101px;
  top: 105px;
  transform: rotate(30deg);
  width: 62px;
}

.bar {
  background: #2b2d31;
  height: 8px;
  left: 28px;
  top: 86px;
  width: 156px;
}

.cue-list {
  border-radius: 24px;
  display: grid;
  gap: 10px;
  padding: 14px;
}

.cue {
  display: grid;
  font-size: 13px;
  gap: 10px;
  grid-template-columns: 42px 1fr;
  margin: 0;
}

.cue strong {
  color: var(--ink);
}

.how {
  display: grid;
  gap: 28px;
  padding-bottom: 56px;
  padding-top: 42px;
}

.section-heading {
  display: grid;
  gap: 14px;
  max-width: 760px;
}

.section-heading p {
  color: var(--soft);
  font-size: 18px;
  line-height: 1.55;
  margin: 0;
}

h2 {
  font-size: clamp(32px, 4vw, 42px);
  line-height: 1.12;
  margin: 0;
  max-width: 840px;
}

.steps {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 12px;
  padding: 22px;
}

.step-number {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.step h3 {
  font-size: 22px;
  line-height: 1.25;
  margin: 0;
}

.step p,
.trust-box p {
  font-size: 15px;
  margin: 0;
}

.feedback,
.faq {
  display: grid;
  gap: 28px;
  padding-bottom: 58px;
  padding-top: 46px;
}

.feedback-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feedback-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 14px;
  padding: 24px;
}

.feedback-card h3 {
  font-size: 28px;
  line-height: 1.12;
  margin: 0;
}

.feedback-card p {
  color: var(--soft);
  font-size: 16px;
  line-height: 1.52;
  margin: 0;
}

.faq-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 22px 24px;
}

.faq-list details:last-child {
  border-bottom: 0;
}

.faq-list summary {
  cursor: pointer;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  color: var(--muted);
  content: "+";
  float: right;
  font-size: 24px;
  line-height: 1;
  margin-left: 20px;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  color: var(--soft);
  font-size: 16px;
  line-height: 1.55;
  margin: 14px 0 0;
  max-width: 820px;
}

.safety {
  background: var(--ink);
  border-radius: 8px;
  color: white;
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr) 320px;
  margin-bottom: 34px;
  padding: 28px;
}

.safety h2 {
  color: white;
}

.safety p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.56;
  margin: 12px 0 0;
}

.trust-box {
  border-radius: 8px;
  color: var(--ink);
  display: grid;
  gap: 8px;
  padding: 22px;
}

.trust-box strong {
  font-size: 24px;
  line-height: 1.25;
}

.final-cta {
  align-items: center;
  display: grid;
  gap: 16px;
  justify-items: center;
  padding-bottom: 76px;
  padding-top: 46px;
  text-align: center;
}

.final-cta h2 {
  max-width: 720px;
}

.final-cta p {
  color: var(--soft);
  font-size: 18px;
  line-height: 1.55;
  margin: 0;
  max-width: 560px;
}

.footer-inner {
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding-bottom: 34px;
  padding-top: 34px;
}

.footer-copy {
  max-width: 560px;
}

.footer-copy strong {
  display: block;
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.footer-copy p,
.footer-links,
.legal-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.footer-links {
  align-items: flex-end;
  display: grid;
  gap: 10px;
  text-align: right;
}

.footer-links a {
  color: var(--ink);
  font-weight: 800;
}

.legal-page {
  max-width: 820px;
  padding-bottom: 70px;
  padding-top: 70px;
}

.legal-page h1 {
  font-size: clamp(38px, 5vw, 48px);
  line-height: 1.08;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
  margin: 14px 0;
}

.intro {
  color: var(--soft);
  font-size: 18px;
  line-height: 1.55;
  margin: 0 0 38px;
}

.legal-page section {
  margin-top: 28px;
}

.legal-page h2 {
  font-size: 22px;
  line-height: 1.27;
}

.legal-page p {
  color: var(--soft);
  font-size: 16px;
  line-height: 1.56;
}

@media (max-width: 860px) {
  .section,
  .nav,
  .footer-inner {
    max-width: 100%;
    overflow-x: hidden;
  }

  .nav {
    gap: 16px;
  }

  .nav-links {
    gap: 12px;
  }

  .nav-links .app-store {
    display: none;
  }

  .hero {
    gap: 36px;
    grid-template-columns: 1fr;
    min-height: auto;
    overflow: hidden;
    padding-top: 42px;
  }

  .hero-device img {
    justify-self: center;
    max-width: 380px;
    width: 100%;
  }

  .steps,
  .safety,
  .feedback-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }

  .footer-links {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 520px) {
  main,
  .site-header,
  .site-footer {
    max-width: 100vw;
    overflow: hidden;
    width: 100vw;
  }

  .nav,
  .footer-inner,
  .section {
    margin-left: 0;
    margin-right: 0;
    max-width: 100vw;
    padding-left: 18px;
    padding-right: 18px;
    width: 100vw;
  }

  .hero {
    align-items: stretch;
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding-bottom: 38px;
    padding-top: 34px;
  }

  .hero-copy,
  .hero-copy > p,
  h1 {
    max-width: 350px;
    width: auto;
  }

  .hero-copy {
    gap: 20px;
  }

  .legal-page {
    max-width: 100vw;
    width: 100vw;
  }

  .legal-page h1,
  .legal-page h2,
  .legal-page p,
  .intro,
  .updated {
    max-width: 330px;
    overflow-wrap: anywhere;
    width: auto;
  }

  .brand {
    font-size: 17px;
    min-width: 0;
  }

  .nav-links a {
    display: none;
  }

  h1 {
    font-size: 39px;
    line-height: 1.04;
  }

  .hero-copy > p {
    font-size: 17px;
    line-height: 1.44;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions .app-store img {
    width: 168px;
  }

  .check-row {
    display: none;
  }

  .safety {
    padding: 22px;
  }

  .hero-device {
    align-self: center;
    margin-left: 0;
    margin-right: 0;
  }

  .hero-device img {
    max-width: 306px;
    width: 78vw;
  }
}

@media (max-width: 380px) {
  .brand-icon {
    border-radius: 10px;
    height: 34px;
    width: 34px;
  }

  .nav-links {
    gap: 10px;
  }

  .nav-links a {
    font-size: 12px;
  }

  h1 {
    font-size: 36px;
  }

  .hero-device img {
    max-width: 286px;
    width: 78vw;
  }
}